I have an Olympus evolt 500 with a 40-150 lens. Sometimes I just want to get a closer shot. Do 2x adapters work or do they degrade the picture. They aren't much on ebay (from $30-$70), but I don't want to waste money if they are junk. thanks

I've used a 1.4x with my Canon 70-200 f2.8L and noticed that the shots weren't quite as sharp as they were without but it was nothing that couldn't be fixed up in photoshop. I think it depends on the quality of the lens and the extender you're using.